New Builds

The CM8 Cavity Drain Membrane is an 8mm studded membrane designed for Type C waterproofing applications. It is suitable for walls, floors, vaults, and tunnels, providing a dry, habitable space in areas previously suffering from damp-wet conditions. Key features include: Waterproof and salt-inhibiting: Resistant to salt and contaminants. Quick installation: Minimal preparation needed for wall surfaces. Low and high temperature tolerance: Suitable for various environmental conditions. No drying out process: Redecoration can occur immediately after installation.CM8 Cavity Drain Membrane Data Sheet

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Quadproof Evolution is a high specification co-extruded multi-layer barrier specifically developed for use on construction sites contaminated by Volatile Organic Compounds, Hydrocarbons and other ground gasses such as Methane, Radon and CO2. The product is 14 layers and contains 2 layers of gas barrier polymer (EVOH) to offer exceptional performance and prevent the ingress of dangerous gasses into buildings. It is manufactured using the latest co-extrusion technology and cannot delaminate. The product will also act as a damp-proof membrane. The membrane is manufactured using High Performance engineering Polymers to give exceptional strength and does not require reinforcement. It can be installed by the use of sealing tapes or can easily be welded. Quadproof Evolution Membrane Data Sheet 

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Quadproof Ultra Membrane is designed to integrate with the subsequently placed fresh concrete to give a strong mechanical bond effect without adhesive, primers, heat or open flames • Applied before fixing steel reinforcement • Applied in a vertical or horizontal to blindside or under slab applications • Used to create an integral seal between the concrete and the waterproofing membrane • Specifically developed for use on construction sites contaminated by Volatile Organic Compounds, Hydrocarbons, and other ground gasses such as Methane, Radon and CO² Quadproof Ultra Membrane Data Sheet  • Ensures a fully bonded waterproofing barrier • Membrane bond is continuous • Supplied single-wound to achieve a lay flat surface • Exceptionally high resistance to ground gas and VOC’s • Used for gas/waterproofing and tanking of underground structures • Impedes lateral migration of water between the membrane and concrete structure • Waterproofing barrier Type A • Easily folded on site • CE marked for water proofing to harmonised standard EN 13967:2012+A1:2017 • Conforms to BS8102:2022 • Conforms with BS8485:2015+A1:2019 (Table 7) • Incorporates guidance outlined in CIRIA C748 • Conforms to the specification required of NHBC Amber 1 & 2 applications. • Suitable for all Characteristic Gas Situations (CS) ground gas regimes • Excellent welding characteristics • Two layers of Ethylene Vinyl Alcohol Co-Polymer (EVOH) • Advanced 14-layer membrane barrier • Preformed accessories available • Taped system for easy cold-applied installation

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CM8 Geotextile Membrane dual layers comprise of Wykamol's CM8, 8 mm studded HDPE membrane and a nonwoven geotextile manufactured from UV stabilised, high tenacity, virgin polypropylene fibres that have been mechanically entangled to provide high strength, high extensibility, high loft and excellent abrasion characteristics. The geotextiles are also thermally treated to reduce thickness while maintaining excellent mechanical properties. CM8 is also ideal for use on a green roof. Green roofs can range from roof gardens with raised beds and pots, to rolled-out green carpets, to shed roofs containing planting cells that are filled with soil or compost and planted up with low-growing perennials and grasses. CM20 Geotextile Membrane is also an excellent radon barrier and has passed all the relevant tests for resistance to this gas.  Size: 2m x 20m - 24.4kg Wykamol CM8 External Drainage Membrane with Geotextile Layer Data Sheet

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CM8 Cavity Drain Membrane is an 8 mm studded membrane, suitable for Type C waterproofing and delivering a grade 3 environment to BS8102:2009 and NHBC Chapter 5.4. CM8 is available in either 500g or 700g densities. We recommend using the CM8 HD700 when a heavier, denser membrane is deemed necessary by the Wykamol Technical Department. Please always take advice from our technical experts when making product selections. ADVANTAGES•Creates dry, habitable living space in areas previously suffering from damp-wet conditions.•Waterproof, salt-inhibiting, and root- and contaminate-resistant.•Quick to install—minimal preparation needed to wall surfaces.•Easily cut down using a sharp blade.•No drying out process – redecoration can occur immediately.•Little or no damage to the existing structure.•Low and high temperature tolerance.•Part of a type C cavity drain membrane system in line with BS8102:2009.•Clear for easy application and fixing of wykamol plugs. Full Cavity Drain CM8 KIT Data Sheet

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